Correct: 4 + 6, 3 + 7, 5 + 5, 9 + 1, 0 +10, 2 + 8, 7 + 3, Incorrect: 1 + 5, 2 + 4, 5 +3, 6 + 3, 7 + 2, 9 + 5, 6 + 6,

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